Department of Community Medicine University of Nigeria Enugu Campus Nigeria;
Plastic Production Unit Scientific Equipment Development Institute Akwuke Nigeria;
Chemical Engineering Department Nnamdi Azikiwe University Awka Nigeria;
Department of Geological Sciences Nnamdi Azikiwe University Awka Nigeria;
Department of Scientific and Industrial Research National Research Institute for Chemical Technology Zaria Nigeria;
Cucumis sativus L.; Solanum aethiopicum L.; Phytochemicals and Heavy Met-als; North Central Region and South Eastern Region;